Channel letters:

 

Front Lit

Reverse Lit (or “halo lit”)

Front/Back Lit

Open Face Front lit

 

Front lit letter type emits illumination only from the front (face) of the letters.

 

Reverse lit channel letters emit illumination only from the back of the letters. 

Reverse channel letters are also called “halo lit” letters.

 

Front/back lit letters produce illumination from both the front and back of the letters.

 

Open Face letters are open only at the face, and have a 3” return 

 

Channel letters are typically illuminated with LED, but neon is still utilized periodically.appropriate for certain applications.Channel letters are typically mounted in two ways: flush mount or raceway mount. Flush mounted channel letters are affixed directly to the substrate of the building. Raceway mounted channel letters are affixed to a rectangular structure called a “raceway”, and the raceway is then mounted to the surface of the building.